尽一切职责,而不希望得到任何回报。
数学不是一门演绎科学——那是陈词滥调。当你试图证明一个定理时,你不仅仅是列出假设然后开始推理。你所做的是反复试验、实验和猜测。
If you ask me what I came into this life to do, I will tell you: I came to live out loud. 
Strengthen international cooperation to promote the improvement of technology and management in the coal industry.
Success in business comes from understanding people, not just numbers.
Art is my way of fighting against the world.
民主开始失败,政治生活变得贫乏,当缺乏那些重要的公共领域时,如公共和高等教育,在这些领域中,公民价值观、公共学术和社会参与允许对未来有更富想象力的把握,认真对待正义、公平和公民勇气的需求。